JPS53117336A - Optical character reader - Google Patents

Optical character reader

Info

Publication number
JPS53117336A
JPS53117336A JP3151577A JP3151577A JPS53117336A JP S53117336 A JPS53117336 A JP S53117336A JP 3151577 A JP3151577 A JP 3151577A JP 3151577 A JP3151577 A JP 3151577A JP S53117336 A JPS53117336 A JP S53117336A
Authority
JP
Japan
Prior art keywords
optical character
character reader
scanning period
mean values
shade
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
JP3151577A
Other languages
Japanese (ja)
Inventor
Kazuo Nakano
Hideharu Hasu
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Oki Electric Industry Co Ltd
Original Assignee
Oki Electric Industry Co Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Oki Electric Industry Co Ltd filed Critical Oki Electric Industry Co Ltd
Priority to JP3151577A priority Critical patent/JPS53117336A/en
Publication of JPS53117336A publication Critical patent/JPS53117336A/en
Pending legal-status Critical Current

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  • Character Input (AREA)

Abstract

PURPOSE: To obtain accurate character information without being influenced by the shade of a character, etc., by trying to calculate mean values of peak voltages at the white and black parts in the scanning period n times as long as the scanning period and by setting a slice level depending upon both the mean values.
COPYRIGHT: (C)1978,JPO&Japio
JP3151577A 1977-03-24 1977-03-24 Optical character reader Pending JPS53117336A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP3151577A JPS53117336A (en) 1977-03-24 1977-03-24 Optical character reader

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP3151577A JPS53117336A (en) 1977-03-24 1977-03-24 Optical character reader

Publications (1)

Publication Number Publication Date
JPS53117336A true JPS53117336A (en) 1978-10-13

Family

ID=12333331

Family Applications (1)

Application Number Title Priority Date Filing Date
JP3151577A Pending JPS53117336A (en) 1977-03-24 1977-03-24 Optical character reader

Country Status (1)

Country Link
JP (1) JPS53117336A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS60184280A (en) * 1984-03-01 1985-09-19 キヤノン株式会社 Pattern converter

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS60184280A (en) * 1984-03-01 1985-09-19 キヤノン株式会社 Pattern converter

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